30128203819492 has 48 divisors (see below), whose sum is σ = 55528045272000. Its totient is φ = 14263870642560.

The previous prime is 30128203819477. The next prime is 30128203819499. The reversal of 30128203819492 is 29491830282103.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (30128203819499) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1842808134 + ... + 1842824482.

It is an arithmetic number, because the mean of its divisors is an integer number (1156834276500).

Almost surely, 2^{30128203819492} is an apocalyptic number.

It is an amenable number.

30128203819492 is a deficient number, since it is larger than the sum of its proper divisors (25399841452508).

30128203819492 is a wasteful number, since it uses less digits than its factorization.

30128203819492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27436 (or 27434 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 52.

The spelling of 30128203819492 in words is "thirty trillion, one hundred twenty-eight billion, two hundred three million, eight hundred nineteen thousand, four hundred ninety-two".